Rto multi-chamber exhaust gas combustion treatment apparatus

Abstract

The application discloses an RTO multi-chamber waste gas combustion treatment equipment, and relates to the technical field of waste gas combustion treatment.The equipment comprises a valve for closing / opening an air inlet passage / air outlet passage; a driving rod, wherein the valve is assembled on the driving rod, and the driving rod is used for reciprocatingly moving the valve; and a cooling pipe used for conveying cold air and internally separated into a plurality of conveying passages, wherein each conveying passage is correspondingly communicated with the inner cavity of one driving rod, the inner cavity of the driving rod is communicated with the cooling passage distributed on the valve, and the cooling pipe is arranged on the air outlet valve to blow and cool the heat storage chamber subjected to previous treatment, so as to prevent the air outlet valve from being damaged due to excessively high temperature and to clean the surface oil stains; the conveying passage is changed to control the conveying of cold air to the set driving rod; the motor controls the rotation of the switching disc; the air pressure passage is changed in rotation through the switching groove to realize the position distribution of the gas, and the purpose of controlling the opening or closing of the specified valve is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas combustion treatment, and in particular to an RTO multi-chamber waste gas combustion treatment device. Background Art

[0002] An RTO (Regenerative Thermal Oxidation) is a device that purifies organic waste gas (VOCs) through thermal incineration. Known as a regenerative thermal oxidizer, it purifies VOCs in the waste gas by burning them. When VOCs reach a certain concentration (typically ≥2000 mg / m³, varying depending on the calorific value of the waste gas), the VOCs themselves can be burned thermally, maintaining the RTO temperature at 800-850°C, without the need for additional heat. However, in actual production, waste gas concentrations fluctuate frequently. When the VOC concentration in the waste gas decreases and cannot achieve self-equilibrium, the RTO temperature cannot be maintained above 800°C by the waste gas itself. Ignition of the burner configured on the RTO is required to maintain the waste gas cracking temperature. Existing RTO combustion treatment equipment processes waste gas in single-chamber and multi-chamber systems. In multi-chamber systems, due to the alternating opening of valves, the waste gas is discharged from the valves at high temperature after combustion, resulting in excessive valve temperatures, which affect the service life and require the valve temperature to be reduced. Furthermore, oil pollution generated by flue gas combustion is adsorbed in the regenerative thermal chamber. Summary of the Invention

[0003] The purpose of the present invention is to provide an RTO multi-chamber exhaust gas combustion treatment equipment, which has the advantages of being equipped with a cooling pipe on the outlet valve to blow air to cool the heat storage chamber of the previous treatment to prevent the outlet valve from being damaged by excessive temperature, and secondly to clean the surface oil stains; by changing the delivery channel to control the delivery of cold air to the set driving rod, the motor controls the rotation of the switching disk, and changes the air pressure channel through the rotation of the switching slot to realize the position distribution of the gas, thereby achieving the purpose of controlling the opening or closing of the specified valve.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: an RTO multi-chamber exhaust gas combustion treatment device, comprising;

[0005] The combustion furnace is internally divided into several chambers, namely a combustion chamber, a heat storage chamber, an air inlet chamber and an air outlet chamber. The heat storage chamber is provided with several and shares a combustion chamber. The air inlet chamber and the air outlet chamber are respectively arranged on both sides of the several heat storage chambers. The air inlet chamber and the several heat storage chambers are connected by an air inlet channel, and the air outlet chamber and the several heat storage chambers are connected by an air outlet channel. The air inlet channel and the air outlet channel are symmetrically arranged.

[0006] A valve used to seal / open the air inlet / outlet channel;

[0007] The valve is assembled on the driving rod, which is used to push the valve to move back and forth, and the driving rod is a hollow pipe;

[0008] The cooling pipe is used to transport cold air and is internally divided into several transport channels. Each transport channel is connected to the inner cavity of a driving rod, and the inner cavity of the driving rod is connected to the cooling channels distributed on the valve;

[0009] Switching disk 1, which is mounted on the cooling pipe and is used to open one of the several conveying channels and close the other conveying channels;

[0010] The cold air flowing in the cooling pipe is controlled by the switching disk, and then sent into the driving rod through one of the delivery channels and flows through the valve and the heat storage chamber to reduce the temperature of the valve and the heat storage chamber;

[0011] The adjustment control is used to control the movement of the drive rod. The adjustment control includes a control seat, a switching disk 2 and a switching tube. One side of the control seat is connected to several trachea seats. The air tubes connected to the trachea seats are connected to the staggered drive rods, which are used to synchronously push the staggered drive rods to move back and forth. The switching disk 2 is placed on the control seat, and the rotating shaft that drives the switching disk 2 to rotate passes through the control seat. The other side of the control seat is connected to the air pump. The rotation of the switching disk 2 is used to adjust the connection between the air pump and one of the trachea seats to form an air pressure channel.

[0012] As an optional embodiment, the air intake chamber is connected to a filter via a blower, so as to filter the smoke and discharge it into the air intake chamber;

[0013] The gas outlet chamber is connected to the heat accumulator and the chimney respectively. The gas exhausted after combustion absorbs heat in the heat accumulator and is discharged through the chimney. The heat accumulator is used to recover the heat of the flue gas.

[0014] As an optional embodiment, the interior of the cooling pipe is divided into a plurality of conveying channels by partitions arranged in the length direction, and the partitions are distributed at equal angles.

[0015] As an optional embodiment, the switching disk 2 is sealed in connection with the side of the tracheal seat, and a switching groove is provided on the switching disk 2, through which the air pump inflates / extracts air into the tracheal seat.

[0016] As an optional embodiment, the switching disk 1 is used to isolate the cooling pipes, and annular grooves for inserting the cooling pipes on both sides are provided on both sides of the switching disk 1, and the cooling pipes are sealed to the switching disk 1.

[0017] As an optional embodiment, the switching disk 1 is placed in the cooling pipe, and a tooth groove is provided at the connection between the cooling pipe and the switching disk 1. The cooling pipe is located on the inner wall of both sides of the switching disk 1 and a fixed annular sealing seat is fixed on the annular sealing seat, and the annular sealing seat is sealed and connected to the two side surfaces of the switching disk 1.

[0018] As an optional embodiment, a gear ring is fixed on the outer wall of the switching disk 1 and meshes with the gear with a shaft.

[0019] As an optional embodiment, the rotating shaft is connected to the gear through a gear set, and the switching disk 1 and the switching disk 2 rotate synchronously to control the opening and closing of the conveying channel and the air pressure channel.

[0020] As an optional embodiment, a drive frame is mounted on the drive rod, and a row of ratchets hinged on the drive frame engages with the ring gear of the switching disk 1 through a gear set.

[0021] As an optional implementation, each ratchet is connected to the drive frame via a spring.

[0022] The technical effects and advantages of the present invention are as follows:

[0023] 1. The outlet valve is equipped with a cooling pipe to blow air to cool the regenerator of the previous treatment to prevent the outlet valve from being damaged by excessive temperature. Secondly, oil impurities will appear at the bottom of the regenerator after the previous round of exhaust gas treatment. Cooling it will cause the oil to fall off under the stimulation of heat and cold, which can be used to clean the surface oil.

[0024] 2. The interior of the cooling pipe is divided into several delivery channels by partitions set in the length direction. The partitions are distributed at equal angles, and the delivery channels are set independently. By changing the delivery channel, the cold air is delivered to the set drive rod. The motor controls the rotation of the switching disk 2, and the air pressure channel is changed by rotating the switching slot to realize the position distribution of the gas, so as to achieve the purpose of controlling the opening or closing of the specified valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the combustion treatment equipment of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the combustion treatment equipment of the present invention;

[0027] Figure 3 This is a structural diagram of the air inlet, air outlet and valve located inside the heat storage chamber of the present invention;

[0028] Figure 4 This is a cross-sectional view of the valve and the cooling pipe connection diagram of the present invention;

[0029] Figure 5 This is a diagram showing the connection between the cooling pipe, the control unit, the valve, and the drive rod pipeline of the present invention;

[0030] Figure 6 This is a structural diagram of a type 1 switching disk of the present invention;

[0031] Figure 7 For the present invention Figure 6 Partial exploded view of

[0032] Figure 8 This is a structural diagram of a type 2 switching disk of the present invention;

[0033] Figure 9 This is a structural diagram of embodiment 2 of the present invention;

[0034] Figure 10 This is a diagram showing the connection between the ratchet and the teeth according to the second embodiment of the present invention;

[0035] Figure 11 This is a diagram of the ratchet structure of embodiment 3 of the present invention;

[0036] Figure 12 A diagram showing the meshing of a circle of ratchets and teeth according to the third embodiment of the present invention;

[0037] Figure 13 For the present invention Figure 12 Schematic diagram of the H-bevel of the tooth;

[0038] Figure 14 This is a structural diagram of a driving rod and a sleeve with straight grooves according to a third embodiment of the present invention;

[0039] Figure 15 This is a structural diagram of a drive rod and a sleeve with a spiral groove according to a third embodiment of the present invention;

[0040] Figure 16 It is a simplified schematic diagram of the present invention.

[0041] In the picture:

[0042] 1. Combustion furnace; 2. Valve; 3. Drive rod; 4. Cooling pipe; 5. Switching plate 1; 6. Adjustment control; 61. Control seat; 62. Switching plate 2; 63. Switching pipe; 64. Gas pipe seat; 7. Ratchet. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] Before describing the embodiments of the present application, in order to facilitate understanding of the technical solutions of the present application, the basic concepts and terms involved in the embodiments of the present application are first explained:

[0045] RTO: (Regenerative Thermal Oxidizer) multi-chamber exhaust gas combustion treatment equipment is an efficient and energy-saving industrial organic waste gas (VOCs) purification technology. It uses thermal storage materials to store and recover the high-temperature heat generated by combustion, preheats the exhaust gas, and makes it reach the decomposition temperature at a lower energy consumption. It is then oxidized and decomposed in the combustion chamber, and finally converted into harmless C and O discharge;

[0046] The multi-regenerator (usually three or more chambers) design is designed to achieve continuous operation, ultra-high heat recovery efficiency and prevent instantaneous emission of untreated exhaust gas, wherein multiple regenerators are arranged side by side.

[0047] The following uses the most common three-chamber RTO as an example to explain its working principle. It involves three main stages, which are executed periodically in turn through automatic valve switching. The three heat storage chambers are named Heat Storage Chamber A, Heat Storage Chamber B, and Heat Storage Chamber C in sequence.

[0048] Regenerator A, Regenerator B, and Regenerator C are all equipped with two valves, one for air intake and the other for air discharge, named as A air intake valve, B air intake valve, C air intake valve, A air outlet valve, B air outlet valve, and C air outlet valve respectively;

[0049] 1. Air intake / preheating stage (taking regenerator A as an example)

[0050] The air inlet valve No. A and the air outlet valve No. B are opened, and the other valves are closed. The exhaust gas at room temperature (25-50℃) containing VOCs is sent into the heat storage chamber No. A through the air inlet valve No. A by the blower.

[0051] The heat storage blocks (usually honeycombs made of special ceramic materials) in the A heat storage chamber have absorbed the heat of the purified hot gas in the previous cycle (as the outlet stage) and are in a high temperature state (usually >700°C).

[0052] When the exhaust gas flows through the high-temperature heat storage block in the heat storage chamber A, the heat absorbed by the heat storage ceramic is quickly preheated (it can be preheated to a temperature close to the combustion temperature, for example, above 750°C).

[0053] The preheated exhaust gas enters the combustion chamber (located above all regenerators).

[0054] 2. Combustion / Oxidation Stage:

[0055] The combustible exhaust gas preheated to high temperature enters the combustion chamber.

[0056] A burner is installed in the combustion chamber (to provide auxiliary heat energy during startup or when the calorific value of the exhaust gas is low).

[0057] In the combustion chamber, the exhaust gas is burned at 760-850℃ and undergoes a full thermal oxidation reaction, decomposing into harmless carbon dioxide (C ) and water vapor ( O).

[0058] The high-temperature purified gas produced in this stage (including combustion products and remaining air, nitrogen, etc.)

[0059] 3. Exhaust / heat storage stage (taking heat storage chamber B as an example)

[0060] The hot purified gas from the combustion chamber is directed downward through regenerator B.

[0061] The temperature of the heat storage block in heat storage chamber B is lower after the previous cycle (as the intake stage) (the temperature will decrease after processing the exhaust gas).

[0062] When the high-temperature purified gas flows through the heat storage block of the No. B heat storage chamber, the sensible heat it carries is transferred to the low-temperature heat storage ceramic, thereby heating the heat storage block. After heat recovery, the temperature of the purified gas is significantly reduced (usually to a temperature slightly higher than the inlet exhaust gas temperature, such as 40-70°C), and then it is discharged into the atmosphere from the chimney through the No. B outlet valve.

[0063] Cycle alternation:

[0064] After a set short time (usually ranging from tens of seconds to several minutes), the valve switching system automatically switches the airflow path, the No. B inlet valve and No. C outlet valve open, and the other valves close:

[0065] The new intake stage becomes heat storage chamber No. B: the exhaust gas enters heat storage chamber No. B from intake valve No. B to heat up (heat storage chamber No. B has been preheated by the exhaust stage of the previous cycle).

[0066] The new exhaust / heat storage stage becomes heat storage chamber C: the high-temperature purified gas enters heat storage chamber C to store heat therein and is then discharged from outlet valve C, and the cycle continues.

[0067] For ease of description, the following description will take a three-chamber multi-chamber exhaust gas combustion process as an example. It is understood that multi-chamber exhaust gas combustion includes but is not limited to four-chamber, five-chamber, etc.

[0068] The following is an example of a three-chamber exhaust gas combustion device:

[0069] Figure 2 It is a schematic diagram of the internal structure of the combustion treatment equipment, the combustion furnace 1, which is divided into several chambers, namely the combustion chamber, heat storage chamber A, heat storage chamber B, heat storage chamber C, air inlet chamber and air outlet chamber. The tops of heat storage chambers A, B and C share a combustion chamber. The air inlet chamber and the air outlet chamber are correspondingly arranged on both sides of the several heat storage chambers. The air inlet chamber and the several heat storage chambers are connected by an air inlet channel, and the air outlet chamber and the several heat storage chambers are connected by an air outlet channel. The air inlet chamber is connected to the filter through the blower, which is used to filter the flue gas and then discharge it into the air inlet chamber; the air outlet chamber is connected to the heat accumulator and the chimney respectively. The gas exhausted after combustion is discharged through the chimney after absorbing heat in the heat accumulator. The heat accumulator is used to recover the heat of the flue gas.

[0070] Among them, as an optional method, the heat accumulator is divided into an upper heat storage body and a lower heat storage body (the heat storage body is a heat storage brick, heat storage block, etc.). The exhaust flue gas first passes through the lower heat storage body for heat exchange. The lower heat storage body will cool the flue gas to prevent it from being softened by heat when discharged from the chimney;

[0071] The heat exchange wind will store heat in the upper heat storage body, and the heat of the upper heat storage body (which can also absorb the heat of the combustion chamber) can be recycled;

[0072] An exhaust valve is also connected between the lower heat storage body and the chimney. When the combustion chamber is too hot, the exhaust valve discharges the flue gas to cool it down.

[0073] See Figure 3 , is a diagram of the heat storage chamber and valve structure, in which the valve 2 is used to seal / open the air inlet channel / air outlet channel. Among them, the six valves 2 are named A air inlet valve, B air inlet valve, C air inlet valve, A air outlet valve, B air outlet valve and C air outlet valve. For specific locations, refer to Figure 16 ;

[0074] Only two valves 2 can be opened during each combustion process, one inlet valve and one outlet valve. The two valves 2 opened cannot be from the same combustion chamber, and the two valves 2 must be opened at different times.

[0075] Among them, as an optional method, the driving rod 3 and the valve 2 are assembled on the driving rod 3. The driving rod 3 is used to push the valve 2 to move back and forth, and the driving rod 3 is a hollow pipe. The valve 2 is pushed to move by the driving rod 3. A bracket is set on the air inlet channel and the air outlet channel, and a rotatable roller is installed on the bracket. The driving rod 3 passes through the roller and is supported by the roller. The roller can also reduce the friction during the movement of the driving rod 3. When the driving rod 3 drives the valve 2 to move, it forms a principle similar to that of a cylinder piston rod, with better sealing effect and more convenient opening and closing.

[0076] In addition, a cooling pipe 4 is provided to blow air and cool the regenerator processed in the previous step, for example:

[0077] In the first round, the A inlet valve is opened for air intake, the B outlet valve is opened for air outlet, and the other valves 2 are all closed. In the first round, the cooling pipe 4 installed on the C inlet valve cools the C outlet valve and the C heat storage chamber;

[0078] In the second round, the No. B inlet valve is opened for air intake, the No. C outlet valve is opened for air outlet, and the other valves 2 are all closed. In the second round, the cooling pipe 4 installed on the No. A inlet valve cools the No. A outlet valve and the No. A heat storage chamber;

[0079] In the third round, the C inlet valve is opened for air intake, the A outlet valve is opened for air outlet, and the other valves 2 are all closed. In the third round, the cooling pipe 4 installed on the B inlet valve cools the B outlet valve and the B regenerator;

[0080] Firstly, it prevents the outlet valve from being damaged by excessive temperature. Secondly, oil impurities will appear at the bottom of the heat storage chamber after the exhaust gas is treated by the previous round. When it is cooled, the oil impurities will be separated under the stimulation of heat and cold and discharged along the sewage pipe (not shown) to clean the surface oil impurities.

[0081] As an optional method, each delivery channel is connected to the inner cavity of a driving rod 3, and the inner cavity of the driving rod 3 is connected to the cooling channel distributed on the valve 2;

[0082] A plurality of cooling ports connected to the cooling channel are provided on the side of the valve 2 facing the heat storage chamber. The number and spacing of the cooling ports are set according to requirements.

[0083] See Figure 4 , a hollow main channel is opened inside the driving rod 3 along the axial direction, and a number of auxiliary channels are provided on the rod body extending from the driving rod 3 to the inside of the heat storage chamber. The auxiliary channels are evenly spaced on the driving rod 3 and are used to discharge the cold air flowing in the main channel from the cooling port and the auxiliary channel. The cooling air cools the valve 2 after passing through the valve 2, and is discharged to the inside of the heat storage chamber to reduce its internal temperature. At the same time, the cooled gas can also serve the purpose of purging. The purpose of purging is: when the heat storage / exhaust work of the No. B heat storage chamber is completed, the cooling pipe 4 blows a small amount of clean gas back to the No. A heat storage chamber, and "blows" the untreated exhaust gas remaining in the heat storage chamber cavity back to the combustion chamber, so as to avoid this part of the untreated exhaust gas being directly discharged into the atmosphere without decomposition when switching next time;

[0084] In order to control the cooling pipe 4 to deliver cold air to different driving rods 3, the structure of the cooling pipe 4 and the control equipment are improved;

[0085] See Figure 5 , wherein, as an optional method, the interior of the cooling pipe 4 is divided into a plurality of conveying channels by partitions arranged in the length direction, the partitions are distributed at equal angles, and the plurality of conveying channels are independently arranged;

[0086] A switching disk 5 is mounted on the cooling pipe 4 and is used to connect one of the several conveying channels and close the other conveying channels;

[0087] Type 1:

[0088] See Figure 6-Figure 7A cooling pipe 4 is provided, and the switching disk 5 is placed in the cooling pipe 4. A tooth groove is provided at the connection between the cooling pipe 4 and the switching disk 5. The cooling pipe 4 is located on the inner wall of both sides of the switching disk 5 and an annular sealing seat is fixed. The annular sealing seat is sealed with the two side surfaces of the switching disk 5, ensuring that the switching disk 5 can maintain its sealing during the rotation process. Among them, the switching disk 5 is sealed by the annular sealing seat on both sides.

[0089] Type 2:

[0090] See Figure 8 The switching disk 1 5 is used to separate the cooling pipe 4. There are two cooling pipes 4. An annular groove for inserting the cooling pipes 4 on both sides is provided on both sides of the switching disk 1 5. The cooling pipe 4 is sealed to the switching disk 1 5. The cooling pipe 4 can rotate around the annular groove and can ensure sealing during the rotation process.

[0091] A delivery hole with an area smaller than the delivery channel is provided on both type 1 and type 2 switching disks 5. During the rotation of the switching disk 5, the delivery hole is connected to whichever delivery channel, and the cold air can be delivered to the corresponding delivery channel, and then delivered to the main channel of the driving rod 3 by the delivery channel.

[0092] The cold air flowing in the cooling pipe 4 is switched by the switching disk 5 and then delivered to the corresponding delivery channel. From one of the delivery channels, the cold air is sent into the driving rod 3 and flows through the valve 2 and the heat storage chamber to reduce the temperature of the valve 2 and the heat storage chamber.

[0093] In addition, a gear ring is fixed on the outer wall of the switching disk 1 5 of type 1 and type 2, and is engaged with the gear with a shaft, wherein the gear with a shaft is assembled on the outside of the combustion furnace 1, and the gear with a shaft can rotate around the outside of the combustion furnace 1.

[0094] In order to control the movement of the driving rod 3, an adjustment control 6 is provided to control the movement of the driving rod 3;

[0095] See Figure 6-Figure 8 The adjustment control unit 6 includes a control seat 61, a switching disk 2 62 and a switching tube 63. One side of the control seat 61 is connected to several trachea seats 64. The trachea seats 64 are connected to the staggered driving rods 3 for synchronously pushing the staggered driving rods 3 to move back and forth. The switching disk 2 62 is placed on the control seat 61, and the rotating shaft that drives the switching disk 2 62 to rotate passes through the control seat 61. The other side of the control seat 61 is connected to the air pump through the switching tube 63. The rotation of the switching disk 2 62 is used to adjust the air pump to be connected to one of the trachea seats 64 to form an air pressure channel.

[0096] The switching disk 2 62 is sealedly connected to the side where it connects to the tracheal seat 64. A switching slot is set on the switching disk 2 62. The air pump inflates / exhausts air into the tracheal seat 64 through the switching slot. The tracheal seat 64 is connected to the cannula through a hose, wherein the cannula is inserted with one end of the switching tube 63. When the gas flows into the cannula through the tracheal seat 64, the driving rod 3 is pushed to move in one direction. When the gas is extracted from the tracheal seat 64 and the cannula, the driving rod 3 moves in the other direction to control the opening or closing of the corresponding valve 2.

[0097] The shaft driving the switching disk 2 62 to rotate can be connected to an external motor, and the motor controls the rotation of the switching disk 2 62. The switching disk 2 62 is also provided with a switching slot. After the switching slot rotates and connects with the corresponding air pipe seat 64, the position distribution of the gas is realized, thereby achieving the purpose of controlling the opening or closing of the specified valve 2.

[0098] Example 1, see Figure 6-Figure 8 , the rotating shaft of this embodiment is connected to the gear through a gear set, and the switching disk 1 5 and the switching disk 2 62 rotate synchronously to control the opening and closing of the delivery channel and the air pressure channel. Among them, this setting is suitable for type 1 and type 2 switching disk 1 5. During the rotation of the switching disk 1 5, the switching disk 2 62 is synchronously pushed to rotate. During the rotation process, the switching disk 1 5 controls which delivery channel is opened, thereby selecting the driving rod 3 for delivering cold air to the specified position, and the rotation of the switching disk 2 62 is used to control which valve 2. After adjusting the position of the switching disk 2 62.

[0099] Scenario 1:

[0100] First round: After the switching disk 2 62 rotates, the switching slot is connected to the air pressure channel of the air pipe seat 64 shared by the No. A air inlet valve and the No. B air outlet valve. The air pump controls the No. A air inlet valve and the No. B air outlet valve to be in the open state. The switching disk 1 5 rotates, and the delivery channel is connected to the No. C air outlet valve and the corresponding drive rod 3. After the combustion process, the cold air is discharged through the drive rod 3 to the No. C air outlet valve and the No. C heat storage chamber for cooling;

[0101] Second round: The air pump draws air into the tracheal seat 64 to control the No. A inlet valve and the No. B outlet valve to be in the closed state. Then the switching disk 2 62 rotates, and the switching slot is connected to the tracheal seat 64 shared by the No. B inlet valve and the No. C outlet valve. The air pump controls the No. B inlet valve and the No. C outlet valve to be in the open state. The switching disk 1 5 rotates, and the delivery channel is connected to the No. A outlet valve and the corresponding drive rod 3. After the combustion process, the cold air is discharged through the drive rod 3 to the No. A outlet valve and the No. A heat storage chamber for cooling;

[0102] Round 3: The air pump pumps air into the tracheal seat 64 to control the No. B inlet valve and the No. C outlet valve to be in the closed state. Then the switching disk 2 62 rotates, and the switching slot connects to the tracheal seat 64 shared by the No. C inlet valve and the No. A outlet valve. The air pump controls the No. C inlet valve and the No. A outlet valve to be in the open state. The switching disk 1 5 rotates, and the delivery channel connects to the No. B outlet valve and the corresponding drive rod 3. After the combustion process, the cold air is discharged through the drive rod 3 to the No. B outlet valve and the No. B heat storage chamber for cooling;

[0103] Control is achieved through the above operations.

[0104] Example 2, see Figure 9-10 The control method of this embodiment is different from that of the embodiment. In this embodiment, a drive frame is installed on the drive rod 3, and a row of ratchet teeth 7 hinged on the drive frame engages with the ring gear of the switching disk 5 through a gear set. Each ratchet tooth 7 is connected to the drive frame by a spring.

[0105] In this embodiment, the switching disk 1 5 and the switching disk 2 62 cannot rotate synchronously. In this embodiment, the driving rod 3 is used as the power to drive the ring gear of the switching disk 1 5 to rotate;

[0106] Scenario 2:

[0107] The first round: After the switching disk 2 62 rotates, the switching slot is connected to the air pressure channel of the trachea seat 64 shared by the No. A air inlet valve and the No. B air outlet valve. The air pump controls the No. A air inlet valve and the No. B air outlet valve to be in the open state. When the driving rod 3 moves, the row of ratchet teeth 7 hinged on the driving frame also pushes the gear ring of the switching disk 1 5 to rotate. When the switching disk 1 5 rotates, the conveying channel is connected to the No. C air outlet valve and the corresponding driving rod 3. After the combustion process, the cold air is discharged to the No. C air outlet valve and the No. C heat storage chamber through the driving rod 3 for cooling.

[0108] The second round: the air pump draws air to the trachea seat 64 to control the No. A air inlet valve and the No. B air outlet valve to be in the closed state, and the driving rod 3 moves in the opposite direction. During the movement, the ratchet 7 rotates around the driving frame and continuously compresses the spring. During this process, the gear ring of the switching disk 1 5 cannot rotate, and the delivery channel does not change. Then the switching disk 2 62 rotates, and the switching slot is connected to the air pressure channel of the trachea seat 64 shared by the No. B air inlet valve and the No. C air outlet valve. The air pump controls the No. B air inlet valve and the No. C air outlet valve to move and be in the open state. During the movement of the driving rod 3 on the No. B air inlet valve, a row of ratchet teeth 7 hinged on the driving frame also pushes the gear ring of the switching disk 1 5 to rotate when moving. The switching disk 1 5 rotates, and the delivery channel is connected with the No. A air outlet valve and the corresponding driving rod 3. After the combustion process, the cold air is discharged to the No. A air outlet valve and the No. A heat storage chamber through the driving rod 3 for cooling;

[0109] The third round: the air pump draws air to the trachea seat 64 to control the air inlet valve No. B and the air outlet valve No. C to be in the closed state, and drives the driving rod 3 on the air inlet valve No. C to move in the opposite direction. During the movement, the ratchet 7 rotates around the driving frame and continuously compresses the spring. During this process, the gear ring of the switching disk 1 5 cannot rotate, and the delivery channel does not change. Then the switching disk 2 62 rotates, and the switching groove connects to the air pressure channel of the trachea seat 64 shared by the air inlet valve No. C and the air outlet valve No. A. The air pump controls the air inlet valve No. C and the air outlet valve No. A to move and be in the open state. During the movement of the driving rod 3 on the air inlet valve No. C, a row of ratchets 7 hinged on the driving frame also pushes the gear ring of the switching disk 1 5 to rotate when moving. The switching disk 1 5 rotates, and the delivery channel is connected with the air outlet valve No. B and the corresponding driving rod 3. After combustion treatment, the cold air is discharged to the air outlet valve No. B and the heat storage chamber No. B through the driving rod 3 for cooling.

[0110] Example 3: The driving rod 3 has two operating states:

[0111] Operation state 1: The driving rod 3 does not rotate itself, but only reciprocates along the axial direction. The driving rod 3 cannot drive the valve 2 to rotate during the reciprocating movement;

[0112] Operation state 2: The driving rod 3 rotates itself and reciprocates along the axial direction. During the reciprocating movement, the driving rod 3 drives the valve 2 to rotate.

[0113] The difference between the operating state 1 and the operating state 2 is that the adjustment control 6 for controlling the movement of the driving rod 3 is different;

[0114] The operating state 1 and the operating state 2 are set according to the needs. In the operating state 2, the driving rod 3 is moved so that the cold air is discharged in a continuous spiral manner in the cooling port and the auxiliary channel, thereby increasing the diffusion range of the cold air.

[0115] See Figure 14 In the operating state 1, a straight slot is provided in the sleeve, and a protrusion is fixed on the outer wall of the driving rod 3, which is inserted into the slot to limit the movement of the driving rod 3;

[0116] See Figure 10 , the ratchet teeth 7 in the operating state 1 can be arranged in a row along the driving frame, and a limit plate is fixed on the side opposite to the spring and connected to the ratchet teeth 7, so that the ratchet teeth 7 can only rotate in one direction;

[0117] See Figure 15 In the second operating state, a spiral groove is provided in the cannula, and a protrusion inserted into the spiral groove is fixed on the outer wall of the driving rod 3. When the driving rod 3 is extended and retracted, the protrusion slides along the spiral groove, so that the driving rod 3 can be extended and retracted while rotating;

[0118] See Figure 11-12, several ratchet teeth 7 are spliced ​​into a ring, and multiple rings are set. Through the above structure, during the rotation of the driving rod 3, the ratchet teeth 7 can always be kept in contact with the ring gear, and the teeth connected with the ratchet teeth 7 are changed. Among them, since the ratchet teeth 7 are in a propulsion mode of rotational movement, an H-bevel is set on the teeth, see Figure 13 When the ratchet 7 is driven to retreat, the direction of rotation of the ratchet 7 is toward the H-slope, guiding the ratchet 7 to rotate around the driving frame.

[0119] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An RTO multi-chamber exhaust gas combustion treatment equipment, characterized in that: include: The combustion furnace is internally divided into several chambers, namely a combustion chamber, a heat storage chamber, an air inlet chamber and an air outlet chamber. The heat storage chamber is provided with several and shares a combustion chamber. The air inlet chamber and the air outlet chamber are respectively arranged on both sides of the several heat storage chambers. The air inlet chamber and the several heat storage chambers are connected by an air inlet channel, and the air outlet chamber and the several heat storage chambers are connected by an air outlet channel. The air inlet channel and the air outlet channel are symmetrically arranged. A valve used to seal / open the air inlet / outlet channel; The valve is assembled on the driving rod, which is used to push the valve to move back and forth, and the driving rod is a hollow pipe; The cooling pipe is used to transport cold air and is internally divided into several transport channels. Each transport channel is connected to the inner cavity of a driving rod, and the inner cavity of the driving rod is connected to the cooling channels distributed on the valve; Switching disk 1, which is mounted on the cooling pipe and is used to open one of the several conveying channels and close the other conveying channels; The cold air flowing in the cooling pipe is controlled by the switching disk, and then sent into the driving rod through one of the delivery channels and flows through the valve and the heat storage chamber to reduce the temperature of the valve and the heat storage chamber; The adjustment control is used to control the movement of the drive rod. The adjustment control includes a control seat, a switching disk 2 and a switching tube. Several trachea seats are connected to one side of the control seat. The air pipes connected to the trachea seats are connected to the staggered drive rods, which are used to synchronously push the staggered drive rods to move back and forth. The switching disk 2 is placed on the control seat, and the rotating shaft that drives the switching disk 2 to rotate passes through the control seat. The other side of the control seat is connected to the air pump through the switching tube. The rotation of the switching disk 2 is used to adjust the connection between the air pump and one of the trachea seats to form an air pressure channel.

2. The RTO multi-chamber exhaust gas combustion treatment equipment according to claim 1, characterized in that: The air intake chamber is connected to a filter through a blower, and is used to filter the smoke and then discharge it into the air intake chamber; The gas outlet chamber is connected to the heat accumulator and the chimney respectively. The gas exhausted after combustion absorbs heat in the heat accumulator and is discharged through the chimney. The heat accumulator is used to recover the heat of the flue gas.

3. The RTO multi-chamber exhaust gas combustion treatment equipment according to claim 1, characterized in that: The interior of the cooling pipe (4) is divided into a plurality of conveying channels by partitions arranged in the length direction, and the partitions are distributed at equal angles.

4. The RTO multi-chamber exhaust gas combustion treatment equipment according to claim 1, characterized in that: The switching disk 2 is sealedly connected to the side of the tracheal seat, and a switching groove is provided on the switching disk 2. The air pump inflates / exhausts air into the tracheal seat through the switching groove.

5. The RTO multi-chamber exhaust gas combustion treatment equipment according to claim 1, characterized in that: The switching disk 1 is used to separate the cooling pipes. Annular grooves for inserting the cooling pipes on both sides are provided on both sides of the switching disk 1, and the cooling pipes are sealed and connected to the switching disk 1.

6. The RTO multi-chamber exhaust gas combustion treatment equipment according to claim 1, characterized in that: The switching disk 1 is placed in the cooling pipe, and a tooth groove is provided at the connection between the cooling pipe and the switching disk 1. The cooling pipe is located on the inner wall of both sides of the switching disk 1 and fixed with an annular sealing seat, and the annular sealing seat is sealed and connected to the two side surfaces of the switching disk 1.

7. The RTO multi-chamber exhaust gas combustion treatment equipment according to claim 5 or 6, characterized in that: A gear ring is fixed on the outer wall of the switching disk 1 and meshes with the gear with a shaft.

8. The RTO multi-chamber exhaust gas combustion treatment equipment according to claim 7, characterized in that: The rotating shaft is connected to the gear through a gear set, and the switching disk 1 and the switching disk 2 rotate synchronously to control the opening and closing of the conveying channel and the air pressure channel.

9. The RTO multi-chamber exhaust gas combustion treatment equipment according to claim 7, characterized in that: A driving frame is installed on the driving rod, and a row of ratchets hinged on the driving frame is meshed with the gear ring of the switching disk through a gear set.

10. The RTO multi-chamber exhaust gas combustion treatment equipment according to claim 9, characterized in that: Each ratchet is connected to the driving frame via a spring.

Images